dr(7d)

NAME

SYNOPSIS

dr

drmach

ngdr

ngdrmach

DESCRIPTION

The dynamic reconfiguration (DR) driver consists
of a platform-independent driver and a platform-specific module. The DR driver
uses standard features of the Solaris operating environment whenever possible
to control DR operations and calls the platform specific module as needed.
The DR driver creates minor nodes in the file system that serve as attachment
points for DR operations.

The DR driver provides a pseudo-driver interface to sequence attach
and detach operations on system boards using file system entry points referred
to as ”attachment points.” The form of the attachment point depends
on the platform.

Sun Enterprise 10000 Server

On the Sun Enterprise 10000 server, the DR driver consists of a platform-independent
driver (ngdr) and a platform-specific module (ngdrmach).

The domain configuration server (DCS) accepts DR requests from the system
services processor (SSP) and uses the libcfgadm(3LIB) interface
to initiate the DR operation. After the operation is performed, the results
are returned to the SSP. For more information about the DCS on the Sun Enterprise
10000, refer to the dcs(1M)
man page and the Sun Enterprise 10000 Dynamic Reconfiguration User
Guide.

The DR driver creates physical attachment points for system board slots
that takes the following form:

/devices/pseudo/ngdr@0:SBx

Where x represents the slot number (0 to
15) for a particular board.

The cfgadm_sbd(1M)
plugin creates dynamic attachment points that refer to components on system
boards, including CPUs, memory, or I/O devices. Refer to the cfgadm_sbd(1M) man page for more details.

Sun Fire 15K Server

On the Sun Fire 15K server, the DR driver consists of a platform-independent
driver (dr) and a platform-specific module (drmach).

The domain configuration server (DCS) accepts DR requests from the domain
configuration agent (DCA) that runs on the Sun Fire 15K system controller.
After the DCS accepts a DR request, it uses the libcfgadm(3LIB)
interface to initiate the DR operation. After the operation is performed,
the results are returned to the DCA. For more information about the DCS, refer
to the dcs(1M) man page
and the Sun Fire 15K Dynamic Reconfiguration User Guide.
For more information about the DCA, refer to the System
Management Services (SMS) Dynamic Reconfiguration User Guide.

The DR driver creates physical attachment points for system board slots
that take one of the following forms:

/devices/pseudo/dr@0:SBx

/devices/pseudo/dr@0:IOx

Where x represents the expander number (0
to 17) for a particular board.

The cfgadm_sbd(1M)
plugin creates dynamic attachment points. These attachment points refer to
components on system boards, including CPUs, memory, or I/O devices. Refer
to the cfgadm_sbd(1M)
man page for more details.